CONTRIBUTING.md: Add help for resolving a pull request
CONTRIBUTING.md: Add help for resolving a pull request

smlng/RIOT,kYc0o/RIOT,yogo1212/RIOT,OlegHahm/RIOT,jasonatran/RIOT,OTAkeys/RIOT,basilfx/RIOT,kaspar030/RIOT,jasonatran/RIOT,authmillenon/RIOT,authmillenon/RIOT,x3ro/RIOT,kaspar030/RIOT,miri64/RIOT,ant9000/RIOT,kaspar030/RIOT,yogo1212/RIOT,smlng/RIOT,ant9000/RIOT,miri64/RIOT,toonst/RIOT,authmillenon/RIOT,smlng/RIOT,yogo1212/RIOT,basilfx/RIOT,OlegHahm/RIOT,kaspar030/RIOT,ant9000/RIOT,ant9000/RIOT,OTAkeys/RIOT,toonst/RIOT,smlng/RIOT,kYc0o/RIOT,mtausig/RIOT,toonst/RIOT,mtausig/RIOT,authmillenon/RIOT,kYc0o/RIOT,x3ro/RIOT,smlng/RIOT,OlegHahm/RIOT,jasonatran/RIOT,jasonatran/RIOT,mtausig/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,authmillenon/RIOT,yogo1212/RIOT,RIOT-OS/RIOT,x3ro/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,kYc0o/RIOT,basilfx/RIOT,miri64/RIOT,toonst/RIOT,mtausig/RIOT,kaspar030/RIOT,toonst/RIOT,basilfx/RIOT,jasonatran/RIOT,x3ro/RIOT,basilfx/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,mtausig/RIOT,miri64/RIOT,OlegHahm/RIOT,yogo1212/RIOT,ant9000/RIOT,x3ro/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,miri64/RIOT